I've spent a good bit of time in help menus and googling but to no help. Is there not a global shortcut in Windows 10 for a new TB message?For example, I'm browsing the internet on Firefox and remember I need to email someone. Without leaving Firefox (or even having TB running) there should be a keyboard shortcut like CTRL+ALT+M or something similar that will bring up a TB new message window.So far, I'm having no luck finding one. Thanks in advance for the help.

Try Alt+F then Alt+E to launch Thunderbird to the compose window. It will initially include a link to the web page you were viewing when you started TB but you can delete that link and compose your own message in its place.